保险人对保险货物所承担的保险责任，从（）时生效A、货物装卸完成 B、货物运离保险单所载

— I can't find my dictionary anywhere. 

— You _____ have lost it while studying in the library. [ ]

A. can

B. may

C. would

D. should

下列哪项不是支气管扩张的手术禁忌证（）。

A.一般情况差，合并心、肝、肾功能不全，不能耐受手术者

B.支气管扩张病变范围超过一个肺叶者

C.合并肺气肿、哮喘或有肺源性心脏病的老年患者

D.双侧广泛支气管扩张，心、肺功能均有明显损害者

E.支气管扩张合并急性感染、未得到有效控制者

下列关于校对说法正确的是（）。

A.“校异同”又称“活校”，是一种层次更高、难度更大的校对功能

B.校对工作与编辑工作两者互相依赖，相互配合

C.校是非的功能在于发现并直接改正原稿差错

D.校是非的方法是校对人员发现原稿中的疑点并直接改正

In the United States, older people rarely live with their adult children. But in many other cultures children are expected to care (1) their aged parents. In some parts of Italy, the percentage of adult children who (2) with their parents (3) 65 to 70 percent. In Thailand, too, children are expected to take care of their elderly parents; few Thai elderly live (4) . What explains these differences in living arrangements (5) cultures Modernization theory (6) the extended family household to low levels of economic development. In traditional societies, the elderly live with their children in large extended family units for economic reasons. But with modernization, children move to urban areas, leaving old people (7) in (8) rural areas. Yet modernization theory cannot explain why extended family households were never common in the United States or England, or why families in Italy, which is fully modernized, (9) a p tradition of intergenerational living. Clearly, economic development alone cannot explain (10) living arrangements. Another theory associated intergenerational living arrangements with inheritance patterns. In some cultures, the stem family pattern of inheritance (11) . (12) this system, parents live with a married child, usually the oldest son, who then (13) their property when they die. The stem family system was once common in Japan, but changes in inheritance laws, (14) broader social changes brought (15) by industrialization and urbanization, have (16) the (17) .In 1960 about 80 percent of Japanese over 65 lived with their children; by 1990 only 60 percent did-a figure that is still high (18) U.S. standards, but which has been (19) steadily. In Korea, too, traditional living arrangements are (20) : the percentage of aged Koreans who live with a son declined from 77 percent in 1984 to 50 percent just 10 years later. Although most elderly Koreans still expect to live with a son, their adult children do not expect to live with their children when they grow old.

（20）是（）

A.receding

B.removing

C.invading

D.eroding

Children are a relatively modem invention. Until a few hundred years ago they look like adult, wearing grown-up clothes and grown-up expressions, performing grown-up tasks. Children did not exist because the family as we know it had not evolved.
Children today not only exist; they have taken over in no place more than in America, and at no time more than now. It is always Kids Country here. Our civilization is child-centered, child-obsessed. A kid’s body is our physical ideal. In Kids Country we do not permit middle-aged. Thirty is promoted over 50, but 30 knows that soon his time to be overtaken will come.
We are the first society in which parents expect to learn from their children. Such a topsy-turvy situation has come to abort at least in part because, unlike the rest of the world, ours is an immigrant society, and for immigrants the only hope is in the kids. In the Old Country, that is, Europe, hope was in the father, and how much wealth he could accumulate and pass along to his children. In the growth pattern of America and its ever- expanding frontier, the young man was ever advised to GO WEST; the father was ever inheriting from his son. Kids Country may be the inevitable result.
Kids Country is not at all bad. America is the greatest country in the world to grow up in because it is Kids Country. We not only wear kids clothes and eat kids food; we dream kids dreams and make them come tree. It was, after all, a boys’ game to go to the moon.
If in the old days children did not exist, it seems equally true today that adults, as a class, have begun to disappear, condemning all of us to remain boys and girls forever, jogging and doing push-ups against eternity.

The sentence "In Kids Country we do not permit middle-aged" underlined in Paragraph 2 means that middle-aged ______ .

A．are not permitted to live in America B．are not welcome in America
C．become old too quickly

D．have already been overtaken by children